MSI 770T-C45-AMI BIOS mod failure

I’m having problem modding a BIOS for my motherboard. It’s an MSI 770T-C45.
I tried to mod the latest (8.7) BIOS using the latest AMITool (1.61).
I downloaded the BIOS from the official MSI site.

When I open the original BIOS with AMITool, it shows a warning telling me the BIOS already has a SLIC 2.0 table (NEC ) inserted in the F0 module. I click Allow modification.
I import the Acer or HP SLIC 2.1 table (it doesn’t matter what I choose, it always fails), Method is locked on Dynamic (I can’t change to any other method), and click Go.
AMITool generates the modded BIOS successfully, without any error.
When I flash the BIOS, reboot and try to activate Windows with the matching certificate and key, it fails. Windows stays in trial mode.

If I check the SLIC table with SLIC ToolKit V3.2 it says:
“Dump Error ! (SLIC Table Not found ! )”

I’m having problem modding a BIOS for my motherboard. It’s an MSI 770T-C45.
I tried to mod the latest (8.7) BIOS using the latest AMITool (1.61).
I downloaded the BIOS from the official MSI site.

When I open the original BIOS with AMITool, it shows a warning telling me the BIOS already has a SLIC 2.0 table (NEC ) inserted in the F0 module. I click Allow modification.
I import the Acer or HP SLIC 2.1 table (it doesn’t matter what I choose, it always fails), Method is locked on Dynamic (I can’t change to any other method), and click Go.
AMITool generates the modded BIOS successfully, without any error.
When I flash the BIOS, reboot and try to activate Windows with the matching certificate and key, it fails. Windows stays in trial mode.

If I check the SLIC table with SLIC ToolKit V3.2 it says:
“Dump Error ! (SLIC Table Not found ! )”